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(sin^(2)alpha)/(1+cot^(2) alpha) + (tan^...

`(sin^(2)alpha)/(1+cot^(2) alpha) + (tan^(2)alpha)/((1+tan^(2) alpha)^(2)) + cos^(2) alpha =`

A

-1

B

0

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-TRIGONOMERTIC RATIOS-PRACTICE EXERCISE
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  12. If sec^(6) theta - tan^(6) theta = a sec^(4) theta + b sec^(2) theta +...

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  13. If x=r cos alpha cos beta cos gamma , y= cos alpha cos beta sin gamma...

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